Update file README.md
I changed the word order of the sentence： "Define an RPC service in a .proto file called 'PropertyLookup'". Because in OH, I saw many students name the proto file as PropertyLookup.proto.
On December 29, GitLab will be migrating to the next generation Container Registry, which implements automatic garbage collection. See KB news article for edge cases in which you could need to rebuild a container after the migration.
I changed the word order of the sentence： "Define an RPC service in a .proto file called 'PropertyLookup'". Because in OH, I saw many students name the proto file as PropertyLookup.proto.